If you look at the "sticky" threads at the top of the DoDMERB subforum, you'll find this, together witha lot more useful information from Mr Mullen:

Waiver timelines – The waiver authorities will render their waiver decisions based on their workload; complexity of the case; whether or not additional consultants are utilized in the decision making process AND the consultant’s ability to be responsive; etc. There is NOT standard timeline for rendering a waiver decision. All waiver authorities are dedicate to providing a comprehensive evaluation and issuing as timely a decision as possible.